Study on load‐carrying capacity of MAG butt‐welded mixed connections with different steel strengths
| Author(s): |
Mareike von Arnim
(University of Stuttgart, Institute of Structural Design Stuttgart Germany)
Stefan Eichler (Technische Universität Ilmenau, Department of Mechanical Engineering, Product Engineering Ilmenau Germany) Oliver Brätz (Fraunhofer IGP Rostock Germany) Jörg Hildebrand (Technische Universität Ilmenau, Department of Mechanical Engineering, Product Engineering Ilmenau Germany) Ulrike Kuhlmann (University of Stuttgart, Institute of Structural Design Stuttgart Germany) Jean Pierre Bergmann (Technische Universität Ilmenau, Department of Mechanical Engineering, Product Engineering Ilmenau Germany) Wilko Flügge (Fraunhofer IGP Rostock Germany) |
|---|---|
| Medium: | journal article |
| Language(s): | English |
| Published in: | ce/papers, September 2023, n. 3-4, v. 6 |
| Page(s): | 1458-1463 |
| DOI: | 10.1002/cepa.2262 |
| Abstract: |
Mixed connections of normal‐strength steel and high‐strength steel can enable an optimum resource‐saving use of materials by adapting the material strength to the forces acting on them. But the design and calculation of butt‐welded mixed connections is not clearly regulated in the currently valid standards EN 1993‐1‐8 and EN 1993‐1‐12. In the research project Effective design concepts for mixed connections in steel structures an extensive experimental program with 180 mixed connections has been conducted to investigate the load‐carrying capacity and behaviour of these connections. The weld joint specimens were made with normal‐strength steel S355J2+N and different high‐strength steels S690QL, S700MC or S960QL. Varying parameters were also the filler metals, plate thicknesses, weld bevels and the heat input during welding. The influence of these parameters on the load‐carrying capacity and the deformation behaviour of mixed connections was investigated. Moreover, high‐resolution microhardness mappings (UCI) on the welded specimens were carried out to examine the formation of the soft zone in the heat‐affected zone of the high‐strength steels. |
- About this
data sheet - Reference-ID
10766819 - Published on:
17/04/2024 - Last updated on:
17/04/2024
